Science Topics term usage 2006-10-06

This analysis excludes the activity of search-engine spiders, USGS users, and transactions resulting in errors.

(Table shows only the 40 most frequently chosen terms.)

71	earthquakes
65	surface water quality
44	geographic information systems (GIS)
40	volcanoes
32	ground water
28	tectonic processes
23	earth structure
21	water sampling
18	geologic history
18	climate change
18	land use and land cover
17	earthquake occurrences
17	water chemistry
17	animals
14	contamination and pollution
14	geochemistry
14	acid deposition
14	floods
14	energy resources
14	tsunamis
13	droughts
12	sedimentation
12	erosion
12	human impacts
12	ground-water flow
12	cartography
11	endangered species
11	mineral resources
11	rocks and deposits
11	marine geology
11	water quality
10	surface water (non-marine)
9	desert ecosystems
9	hazards
9	hurricanes
9	geologic structure
8	global change
8	water properties
8	streamflow
8	gravitational field (earth)

Science Topics term usage Friday, 2006-10-06